Computing-scale



(No Model.) I

W. F. STIMPSON.

-' COMPUTING SCALE.

No. 543,323. Patented July 23, 1895.

. www 7.7 Y/Z/Nv/a'an/ www UNITED STATES PATENT QEEICE.

WALTER F. STIMPSON, OF MILAN, MICHIGAN.

COMPUTING-SCALE.

SPECIFICATIQN forming part of Letters Patent No. 543,323, dated J' uly23, 1895.

Application tiled September Z5, 1894. Serial No. 524,107.l (No model.)

To all whom t may concern:

Be it known that 1,WALTER F. STIMPsoN, a citizen of the United States,residing at Milan, in the county of Monroe and State of Michigan, haveinvented certain new and useful Improvements in Computing-Scales, ofwhich the following is a specification, reference being had therein tothe accompanying drawings. A

The invention relates to an improvementin computing-scales; and itconsists in the construction and arrangement of the parts hereinafterdescribed and definitely pointed out in the claims.

In the drawings, Figure l is a front elevation of a scale embodying myinvention. Fig. 2 is a perspective view of the scale, showing the beamturned at a different angle to the platform than that shown in Fig. 1.Fig. is a cross-section through the top of the pillar. Fig. 4 is asectional perspective of a portion of the beam, and Fig. 5isaperspective showing the manner of manufacturing the computing-tableportion of the beam.

A is the platform, resting on the usual levers, (not shown,) and whichare suspended in the frame B. At one end 0f. the frame is the pillar C,under which theV ends of the levers project and from which projects theconnecting-rod D, having a swivel-joint E of any desired or Well-knownform at some point in its length.

F is a shelf having the down wardly-extending supporting-arms G, Whichat their meeting-point are provided With a collar H pivotally supportedon a reduced portion at the top of the pillar C. I is a set-screw in thecollar,`

by means of which the collar and the shelf may be secured at any desiredposition in relation to the platform-as, for instance, as shown in Figs.l and 2.' This shelf F is provided With depending side fianges, and onits under side is suspended the shelf-lever K, to which theconnecting-rod D centrally connects. The opposite end of the lever issuspended on the lower end of the beam-rod L, which at its upper endconnects to the rear end of the beam M. This beam M is the tarebeam ofthe scale, and is fulcrumed at a point substantially midway its centerand end on a bearing in the end of the horizontal arm N, which extendsout from the top of the standard O, supported on top of the shelf at oneend and bifurcated to permit the beam to play between the bifurcations.

The beam M has the depending bars P at each end, and from the lower endsthereof are the inwardly-extending pins @,011 which is pivoted the frameof the computing-panelQ, v'vhich extends, as shown, on both sides of thefulcrum of the tare-beam, whereby a panel and computing-table ofincreased length may be used, the same being substantially or nearlydouble the length of the indicating portion of the tare-beam. Thiscomputingpanel comprises a rectangular frame a, having grooved bars, asshown in Fig. Lt, the bars of the frame being detachably securedtogether;

The computing-table is printed on sheets of paper b, Which are thencoated With a layer of transparent celluloid c, and the computingtablesare then mounted upon the opposite sides of a cardboard backing or paneld, the ends of the panel entering the grooves in the frame and the framebeing then secured together, as show-n, and pivoted on the pins on thetare-beam. The outer pin extends through the arm P and the projectingend is covered with a rubber sleeve e, which Works in an eye formed inthe upper end of the standard hon the shelf and forms the stop for thebeam.

R is the poise on the panel, which has a lateral extension S, on whichare the price-perpound computations giving the Value-of thecounterpoise-weights, and the computingpanel at its end is provided withthe extension T on which the poise runs, so as to bring its reading-edgeto the last roW of figures on the panel carrying the figures.

U is the usual scoop-balance, and U the usual poise on the tare-beam.

The operation of the device is too weil known to require description.

The construction of panel described produces one Which is light, strong,and in which the igures are legible, can readily be cleaned, and can beproduced at a comparatively small cost.

By pivoting the shelf carrying the beam to the pillar the beam may beturned at such an angle as to give a good light for the person using it,and this is desirable, as most stores are lighted only from the front,while the simple, and efficient'.

An important advantage in having the depending arms at the ends of thetare-beam and mounting the panel thereon is that the number ofcomputations recorded or noted on the weighing-panel is very great, andit is therefore necessary to obtain as much space as possible to putthem on, also to avoid crowding. This is accomplished and at the sametime the indicating portion of the tare-beam is of ample length.

.Vhat I claim as my invention isl. In a computing,` scale, thecombination with the platform and base, of a pillar on the base, thesupporting` arms G, a sleeve conneeting the lower ends of thearms andloosely fitted on the pillar, means for securinpr the sleeve inposition, the shelf F supported on the arms, the shelt` lever II, therodD having,r a swivel section, and connected with the lever K and theplatform, the tare beam M supported on the shelf, and the pivotallysupported computing panel Q carried by the tare beam, substantially asdescribed.

2. In a computing scale, the combination with the platform, of thesupportingarm O at one end thereof havingI the forwardly extending arm Nat a point substantially midway between the center and end, the tarebeam pivotally supported on the arm Naud having depending projections atopposite ends, the computing panel pivotally secured at the ceuter ofits ends to the projections on the beam, means for limiting the movementof the beam, and the poise R on the panel, substantially as described.

In a computing scale, the combination with the tare beam, of a computingpanel, pivotal connections between the beam and panel comprising pinsloosely engaging projections on the beam, and a fixed slotted standardth rough which one of the pins passes, substantially as described.

fl. rIlhe combination with a tare beam pivotally supported intermediateits ends and having vertical end extensions, and a computing panelextending on both sides of the pivot of the tare beam and pivoted in theextensions, substantially as described.

5. In a price scale, the Weighing panel oonsisting of an open framepivoted centrally at the ends, and having` the weight indications onboth sides of both edges, a panel having marked thereon computations onboth sides, detachably secured in the frame, and a double poisesliding,r on the frame and having on both faces a progressive series ofprice per pound marks, substantially as described.

In testimony whereof I alIix my signature in presence of two Witnesses.

IVALTIJR F. S'FIMPSON.

Witnesses:

M. H. HACK, MELL Ranuras.

